Use signal.h for handling SIGSEGV

[numere-bot]

DESCRIPTION

Describe, what you observe or want to be changed:
It is possible to register a signal handler with <signal.h> for SIGSEGV. It would be helpful, if this handler could be used to get more diagnostic information in case of a segmentation fault.

Describe, what you expect to happen:
Evaluate the possibilities, which this signal handler offers and whether it can be used with the DetachedLogger instance (probably via a dedicated method using std::flush at the end). Figure out, which diagnostic information can be obtained and add that to the log right before calling std::terminate.

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ANALYSIS

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